Merge pull request #22 from vltansky/check-folder

feat: check if folder is empty

Author: roblarsen

lib/cli.js

@@ -23,6 +23,11 @@ module.exports = async (argvs) => {
   const timer = elapsed.start();
   const version = (argv["release"] || "latest").toString();
   const targetDir = path.resolve(argv["_"][0] || "./");
+  const override = await checkFolder(targetDir, argv);
+  if (!override) {
+    console.log(chalk.red("Aborted"));
+    return;
+  }
   spinner = ora(
     `Downloading ${packageName} version '${version}' to ${targetDir}`
   ).start();
@@ -55,6 +60,26 @@ module.exports = async (argvs) => {
   }
 };
 
+const checkFolder = async (targetDir, argv) => {
+  const folderExists = await fs.exists(targetDir);
+  if (!folderExists) {
+    return true;
+  }
+  if (argv["yes"] === true) {
+    return true;
+  }
+  const folderFiles = await fs.readdir(targetDir);
+  if (folderFiles.length !== -1) {
+    const { override } = await prompts({
+      type: "confirm",
+      name: "override",
+      message: `${targetDir} is not an empty folder, proceed?`,
+      initial: true,
+    });
+    return override;
+  }
+};
+
 const onLoad = async (targetDir, version, argv) => {
   // see https://github.com/mrmlnc/fast-glob#how-to-write-patterns-on-windows
   const npmIgnoreFiles = await glob(